Seborrheic Keratoses

What Is Seborrheic Keratoses?

Seborrheic keratoses are noncancerous (benign) skin growths that some people develop as they age. They often appear on the back or chest, but can occur on any part of the body. Seborrheic keratoses grow slowly, in groups or singly. Most people will develop at least one seborrheic keratosis during their lifetime.

The appearance of seborrheic keratoses can vary widely. They may be light tan to brown or black. The most common texture is rough, with a bumpy, grainy surface that crumbles easily. However, they also may be smooth and waxy. They usually look like they’ve been stuck onto the skin. While some are tiny, others grow larger than 3 cm in diameter.

How Is Seborrheic Keratoses Removed?

There are three methods for removing Seborrheic Keratoses, Cryosurgery which uses liquid nitrogen to freeze off the growth, Electrosurgery which uses an electrical current to scrape off the growth or Curettage, which uses a scoop-like surgical instrument to scrape off the growth.

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*The content and information on derm.ca is intended for a Canadian audience. Derm.ca provides general information that is not intended or implied to be a substitute for professional medical advice (or treatment).